MODULE 4 Flashcards
(7 cards)
1
Q
mixture of 0.5% resorcinol and
3N hydrochloric acid
A
Seliwanoff’s reagent
2
Q
A chemical test which differentiates between Aldose and ketose sugars
A
Seliwanoffs test
3
Q
relies on the principle that, when heated, ketoses are more rapidly dehydrated than Aldoses
A
Seliwanoffs test
4
Q
The components include orcinol, hydrochloric acid, and ferric chloride
A
Bial’s reagent
5
Q
It is a chemical test for the presence of pentoses. A pentose, if present, will be dehydrated to form furfural which then reacts with the orcinol to generate a colored substance
A
Bial’s test
6
Q
Can determine pentose sugars from hexose sugars
A
Bial’s test
7
Q
In Bial’s test what is formed instead of furfural which upon condensation with orcinol forms a muddy brown precipitate?
A
hydroxyfurfuralis
